A flag can show one of two things:
Most castles have towers as a means of protection. So that people can shoot out of them and try and kill the enemy if they are being attacked.
yes
no
Medieval castles.
There is nothing different between todays castles and medieval time castles. Today's castles were built in medieval times.
The welsh medieval castles were big and gray.
Medieval times
in the late medieval period many medieval castles did have a primitive type of cannon.
Castles were invented in medieval times.
There are no genuine medieval castles in the USA, because the Americas were not discovered until after the medieval period had ended. There are the "fairytale" Disney castles and some modern attempts at reconstructing medieval castles, but no genuine ones.
Motte and bailey castles, Stone keep castles and Concentric castles
A castles weakness is the bridge, flags, and other things unknown.
Who is most important in medieval history - kings and emperors. Where do they live - in castles.
medieval Europe
Life